### (Viva Voce) Chap 9 Exercise 9 Question {8}

8. (a) Average speed : 360 km ÷ 4 1/2 h = 80 km/h
(b) Petrol consumption rate : 360 km ÷ 37.5 l = 9.6 km/l
(c) Distance covered at highway : 110 km/h * 2 h = 220 km
Remaining distance : 360 km - 220 km = 140 km
Remaining time : 4 1/2 h - 2 h = 2 1/2 h
Average speed for remaining distance of trip : 140 km ÷ 2 1/2 h = 56 km/h

1. Presentation:
> Alignment of Explanation with Visuals (1)
> Clarity of Voice/Volume (1)

Explanation:
> Mathematical Terms (1)
> Explanation of working/solution must be clear (2) (@2.40 show that speed*time=distance and so on)
> Understanding of concepts (2)

I have really nothing to say...its really good except for the fact I feel drowsy watching this video...Talk a little faster?

2. Presentation: (1)
Mathematical Terms (0)
Explanation of working/solution (1)
Understanding of concepts (2)

Comments: Actually, try not to use digital presentation as in viva u are not suppose to do that ._. Talk faster also... dun nid to speak one syllabus at a time. Only (c) was explained well, (a) and (b) was very brief.

Owen here doing the same qn. ._.

3. Presentation[2]

Mathematical Terms (1)
Explanation of working/solution must be clear (2)
Understanding of concepts (2)